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Finding the Fourth Proportional to 348,876.97, 481,525.25 and 212,881.78

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Solution

The fourth proportional to 348,876.97, 481,525.25 and 212,881.78 is: 293,822.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,876.97 : 481,525.25 = 212,881.78 : x
  2. Step 2: Convert to fraction form
    348,876.97/481,525.25 = 212,881.78/x
  3. Step 3: Cross multiply
    348,876.97x = 481,525.25 × 212,881.78
  4. Step 4: Simplify right side
    348,876.97x = 102,507,950,066.72
  5. Step 5: Solve for x
    x = 102,507,950,066.72/348,876.97
  6. Step 6: Final answer
    x = 293,822.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.